hilpert



lVl. G. HILPERT.

SINGLE TURN TABLE CONSTRUCTION.

APPLICATION FILED APR. 29. 191e.

Patented Dec. 16,1919.

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M. G. HILPERT.

SINGLE TURN TABLE CONSTRUCTION.

APPLICATlON FILED APR. 29. |918.

Patented Deo. 16, 1919.

5 SHEETS-SHEET 3.

M. G. HILPERT.

SINGLE TURN TABLE CONSTRUCTION.

APPLICATION FILED APR. 29, 1918.

5 SHEETS- SHEET 4.

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APPLICATION FILED APR'. 29, 1918- Patented Dec. 16, 1919.

5 SHEETSSHEET 5.

g wom/Ho@ which To all lwhom t may concern.'

MEIER G-EO. HILPERT, 0F HARRISBURQPENNSYLVANIA, ASSIGNOR T0 IBETHLEHEMSTEEL BRIDGE CORPORATION, OF vBETH or DELAWARE. I

LEI-IEM, PENNSYLVANIA, A, CORPORATION SINGLE VTURN-'.IABL'EcoNsTRUc'rIoN.

Be it known that I, MEIER GEO. Hmmm a citizen of the United States,residing at Harrisburg, in the county of Dauphin and State ofPennsylvania, have invented certain new and useful Improvements inSingle Turn-Table Construction, of which the following is aspecification.

This invention relates to turntables which are particularly adapted anddesigned 'to reverse 'locomotives or other rolling stock or placerthesame on another track alinement, and has particular reference to aturntable construction of the multiple span type. v

'I o this endthe invention contemplates a turntable of the two-spantandem type which involves a simple and practical construction `having aminimum number lof partswhich not only renders the entire-structure moreeconomical to build, but at the same time permits of u tilizingstructural members posed to utilize a single central cross girderconstruction which may be supported on a sultable center or pivot toconcentrate all of the variable loads and shocks from either or bothspans on the center.

A further object of the invention is to provide a single central crossgirder Which not only has the advantage of being lighter than the usualtwo cross girders, but which permits of greater security inattaching'the I adjacent ends of the spans, which' is an eslatter at or`pecially desirable feature because preserving continuity of track underthe constant shocks of running heavy locomotives and rolling stockon andofi" of the turntables. That 1s to say, a single cross girder of thetype proposed stability for both spans, although permitting of a slightflexing of the near the center to better take care'of the varying loadsas will hereinafter more fully appear.

A further object of the invention is to providev a single cross girderconstruction which permits of the sllght flexing of the lspansabovereferred to in a thorough and'` practical manner. and under allconditions of use such as the variability of tracks on opposite sides ofthe pit, settlement of give a maximum strength whereby .by the presentinvention- Specication of Letters Patent.v Patented Dec.v 16, 1919.Applicatin filed April 29, 1918; Serial N0.` 231,4 43.

tracks. and any slight unevenness of cenmiddledepth of the spangirders'so as to reduce the movement of either top or bottom edges. tothus preserve the continuity and surface of the turntable track.

A still further object of the invention is to provide a novel lateralsystem which is particularly adapted to the tandem type of turntablespan construction involving a single cross girder` as previously setforth, whereby the thrusts and stresses placed upon the table may bereadily taken care of.

'l That is, theinvention also proposes to provide in combination withthe single cross girder and flexing connection, a lateral system whichwhile allowing the transverse flexing of the cross girder. on the centerbearing to evenly distribute the turntable loads on said center, andwhile also allowing the ends to adjust themselves to the severalsupporting trucks, is also nevertheless rigidv and stron against' allother forces and meets all of t e'requirements due to heavier rollingstock and greater power which is utilized to turn the table more rapidlythan has heretofore been the case.

Furthermore, to render 'the lateral system more eifective, incombination withthe single cross girder construction, lit is pra'-Vposed to arrange the same throu h the turntable in such amanner that 1tw1ll pass through the center of lexure, that is,

through the point of no fleXure. Thus, since the lateral system isintended to take care of the power and braking thrusts laterally i inthe direction throughout the length thereof, it should be as direct aspossible,A

and hence. extends preferablyfrom `point 'of power application to andthrough the point of `no flexure. This. is' thoroughly sprovided for'bythe novel arrangement referred to.'

VViththe abovev and other objects in view which Will more readily.appear as the description of the vinvention progresses, the latterconsists in the novel combination, vand arrangement ofv partshereinafter set forth and claimed,

' ing the' cross Preferred and practical embodiments ofl the presentinvention are illustrated in the accompanying drawings, in which:-

Figure l is a vertical sectional view of a turntable of the tandem spantype including a single cross girder constructed in accordance with thepresent invention, and also showing the lateral system extending fromthe point of power application to and through the point of no fleXure.

Fig. 2 is an enlarged top plan view of the construction shown in Fig. 1illustrating in slightly larger form the construction of one span andthe cross girder, and also the lateral system.

Fig. 3 is a vertical cross sectional view taken at the center of theturntable and showing the turntable center and single cross girder inelevation.

Fig. 4 is a vertical sectional view taken at the intermediate portion ofone of the spans showing how the intermediate vertical cross bracingmeans only extends part of the depth of the girders comprising the span,z'. e. from the top of the girders down to the plane of the lateralsystem.

Fig. 5 is a vertical cross section taken at the truck end of the span.

Fig..6 is an enlargeddetail horizontal section showing one form of crossgirder construction and a portion of the lateral system.

Fig. 7 is a vertical sectional view showgirder construction of Fig. 6 inelevation.

Fig. 8 is a horizontal sectional viewT showing a further modified formof cross girder.

Fig. 9 is a view similar to Fig. 8 showing a still further modified typeof Ycross girder and a special bolt device for carrying the lateralsystem past the cross girder on the outside of the girders of theadjoining spans.

Fig. 10 is a vertical sectional view taken longitudinally of theturntable showing how the lateral system may be placed along the planeof the top flanges of the girders of each span, and may be thence drawndown at the ends to the point of noilexure.

Fig. ll is a detail elevation of a cast cross girder.

Fig. 12 is a detail top plan view of a cross girder involving a specialform of flexing pivot.` A

Fig. 13 is a detail side elevation of the construction shown in Fig. 12.

Similar reference characters designate corresponding parts throughoutthe several figures of the drawings'.

ln carrying the present invention into effect, it will be observed fromFig. l of the drawings that it is proposed to provideia divided ortandem span turntable which essentially consists of the separate spansections A-A each of which consist of the vertical Lsaaeao B-B isprovided with a lateral bracing system designated generally as E whichgives ther girder suflicient strength transversely to take thetransverse and longitudinal thrusts of the span loads and carry the sameto the point of no lexure which is the pivoting plane.

Referring now more particularly to the divided span construction it maybe 'noted that the girders B--B of each span are pref erably of theI-beam type and may be built up structurally by web plates and angleironsto produce the usual web for the beam and the top and bottomflanges thereof. rlhat is to say, each of the girders B may consistI ofthe central vertical web plate l having secured thereto the top angleirons 2 and bottom'angle irons 3 as clearly shown in Figs. 3 to 5inclusive of thedrawings while the intermediate portions of the upperand lower surfaces ofthe top and bottom ianges thus formed may beprovided with suitable reinforcing plates 4. The said ver-4 tical webs 1of the girders also preferably have on their inner and outer faces atsuitable spaced intervals'a plurality of vertical stifening bars 5,While the truck end of each girder .is made of considera-ble less depththan the body thereof and is provided with suitable transverse bracingwebs 6 as clearly sho-wn in Fig. 5 of the drawings. This construction ofthe girders B provides a relatively deep girder section from its innerend to a point adjacent its truck end, at which point the said girdersare made shallower, or in other words are under cut to .provideclearance for the b ed of the track T on which the wheels W of theturntable trucks travel. rl`hus, where the v greater strength isrequired the girder of each span is of greater depth and is thereforebetter capable of withstanding?) the stress of the load imposed thereon,which as yis well known, is of 'varying magnitude and rela-` tivelygreat moment.

The inner sides of the girders B are connected by the transverse braceelements 7 arranged at suitable intervals and each preferably consists,as shown, of the top and bottom angle members 8 and 9 whose verticallianges have securely fastened thereto the end tie plates 10-10, ll-llandthe bracing system E, and

intermediate plates 12-12, which plates are Y connected by the crossedangle braces 13- 13, 111-14. This arrangement provides a strong andrigid union for the vwebs of the` opposite girders B-'-B, andas shownthe same extends from the top ofthe girder down to the horizontal planeof the lateral system.

The foregoing structural details of the girder construction of theseparate' spans may be varied according to requirements without in anyway departing from or affectin ,the salient features of the inven--tion. ne of these salient features is, as heretofore indicated, that ofproviding a two-span, turntable with a'exing joint or hinge possessingthe capacity of permitting a slight vertical flexing of the inner endsof the separate span sections, while at the saine time beingsufliciently strong and rigid to resist and sustain loading thrusts inall other directions. Various forms ofO construction may be employed toprovide a flex- .ends referred to.

In the lform of construction illustrated i-n Figs. 6 and 7 of thedrawings Ithe flexing joint or hinge is consolidatedwith elementsof.both the span andsingle Across girder, and with particular reference tothis consolidated structure, it will be first observed' that oppositefaces of each of the girders B have secured thereto the verticallydisposed sets of angle irons 15-15 and 16-16, which angle irons areintendedtoconnect the spans with the central cross girder C in s uch amanner that each span'will be rigidly and securely connectedlongltud-inally and laterally, but lat the same timepadapted to vflexvertically under the varying -condition of load to properly and evenlyydistribute and concentrate the 'entire load fof the connected spansonto the turntable center kD which is located below the plane of thelowe r most anges of the girder and also the bottom of the-'cross girderas clearly' shown in' Figs.

- 1 and' 3 of the drawings.l -The single cross girder unit, shown inthese-figures of the drawings, consists of a pair of .duplicate castframes designated generally aSlF which may beso arranged as to provide aclearance j forms apart of thisfy all all 17 at'. their inner ends toaccommodate an electrlc conduit or cable post 18. These cast frames F,are as shown in dotted-lines lin Fig. 7, of rectangular form and includethe upper and lower horizontal attaching bars 19 and 20 andtheintermediate bolting web 21, while the innermember 22 lthereofconstitutes a verticalbolting part and the outer member 23 thereof is ofrelatively greater width and of special construction forming a couplingand hinging web for the opposite alined girders of the separateturntable spans. That is to say, the outer member 23 of the cast frameFN is adapted to have secured-thereto by a plurality of bolts, rivets orequivalent fastenings 24 the vertical terminal angle members 15-15 or16-16,

as the case may be, of the adjoining girders frame 23 between thevertical bolting areas 1s cutaway or recessed on both sides as indicatedat 25 in Fig. 6 of the drawings, except for a point somewhat below themiddlel lthereof'as at 26 which latter remains in the n plane ofthebolting surfaces of the opposite faces of the frame, to therebyprovidevin the turntable, while the portion of the effect a rigid pintleelement about whichxv the relative flex-ing movement of the vertical Ywebs 1 ofthe, girders may take place. The location of this horizontalpintle oint 26 i is at the point lof no flexure, or t e ypoint where theeffect of the superposed load exerts no strain Vor stress in either onedirectionor the other from a perpendicular plane. The flanges of theangle member 15-15 or 16-16 are of course secured to -the fulcrum'orpintle member 26 by meansv of -theg extra fastening elements 27, thusiccrigidly anchoring the 'beams or girders at. ,i

their'points of no flexure to the cross girder.

' It will of course be understood that each girder Bof the span issimilarly attachedto one cf the cast frames F, and in order to providein effect a solid singe cross girder, the said frames havel riveted orotherwise secured lto the opposite faces to rigidly unite and connectthe said frames thereoffby means-of the fastenings 28, the I crossgirder web plates 29 and 30. These plates have securedto ,their outerfaces the upper and lower horizontally disposed stiffening angles 31 and32 and the intermediate v i' reversely disposed stift'ening .angles33-34 whosehorizontal anges are spaced. apart as at 35 to accommodatethe obliquely disposed able angle members 39 on the'span girders systemE.

members 33 and 34, as at `35, also rovides for the accommodationof'a'central ie-plate v 'inside tie elements 36 of the lateral system Y`whose opposite ends' are respectively conv I 'nected rigidlysby thefastenings 37 to theangleme1nbers 33 and 34, and at 38 to\suit andlocated in the same plane'as the lateral The lspacing ofthe-horizontal,- ,flanges of the intermediate transverse'angle 40 whichmay be rigidly secured to the said angles 33 and 34 by means of thefastenngs 41, and projects beyond the edges of the horizontal members ofsaid angle elements 33 and 34 whereby the brace elements of the lateralsystem E may be rigidly secured thereto by the fastenings 42 or theirequivalent.' All of these points of attachment are located within thehorizontal plane'termed herein thep plane or point of no fleXure whichincludes the pintle points 26.

To further assist in bracing and stabilizing the central cross girder,the intermediate portion thereof may be provided on opposite sidesthereof as shown in Figs. 6 and 7 with thel reversely disposed andvertically arranged angle members 43 which are in two sections,respectively arranged above and below the reinforcing elements 33 Vand34. Thus, it will be apparent that a strong and rigid single crossgirder is provided by the form of construction shown in Figs. 6 and 7 Iof the drawings which not only provides a flexing point for the oppositegirders of each span, but also provides a central cable post clearancefor accommodatingthexconduit or cable post that supplies electricalenergy to the power units which drive the turntable.

In the 'structure described it will be apparent that a rigid unionhorizontally is eected between the adjoining girders of the separatespan sections, at the pintle point 26. Hence above and below thesepintle points the unattached portions of the terminal girder angles 15and 16 will necessarily yield or flex sufficiently to allow for theslight flexing or hinge-like action between the connnected ends of thespan girders when the load is imposed thereon., thus perj mitting theproper and equal distribution of f fieXure.

tinuity of the lateral system and maintain A the load onto the pivotincenter through the cross girder. 1t will gbe also observed that thelateral system primarily consisting of the diagonal bracing Ybetween thespan girders has a direct and rigid connection with cross girder withinthe plane of no And, in order to preserve the conits bracing effectlongitudinally throughout the entire turntable,Y the brace elements 36are utilized as the inside tie members v between the two spans for thelateral system, and separate outside tie members 44 are provided. These'outside tie members 44 con- 'sist of one or more horizontal web platesarranged longitudinally of the structure,

their ends these outside tie members 44 are suitably fastened as at 44ato -;he span'.

girders, and at an intermediate point, as at 44b are wedged between thestationary lugsy 44c projecting outwardly from the edges of the frame23.

and 7.

Beyond the connection of the lateral system with the cross girder, thesaid system may extend in the samev horizontaly plane throughout thespan sections as shown in Fig. 1, or as suggested in Fig. 10 may bedeflected so as to liesubstantially in the plane of the top orcompression chords of the girders, or if desired or required may bedropped to lie substantially in the plane of the bottom or tensionchords of the girder, or both. In all cases however, the lateral systemconnects with the central cross girder in the plane of no fleXure, andwill effectively act as a stay for the center of the cross girderopposite the line of no fleXure, thus giving the' cross girder amplecapacity for taking and resisting the longitudinal thrusts of the spanloads.

Such modified structures as shown in Fig. 8 of the drawings wouldobviously carry out all of the features and functions of the in-lvention, and as will be observed from said figure a modified form ofcross girder is shown, the same consisting of a pair of web plates 45which are drawn flatly together at both ends while their intermediateportions are bowed and held apart by a plurality of filler elements 46to provide a clearance for the cable post 47, while auxiliary fillers orspacingv elements 48 may alsol be' utilized. The opposite end portionsof the webs 45 which are drawn together areadapted to have the ends ofthe girders B secured thereto with angles 15 and 16 in substantially thesame manner as in the preceding described form of cross girder, and inorder to providekthe necessary clearancefor ac commodating the flexingof the opposite girders, the opposite sides of the webs 45 are rovidedwith the spaced vertical filler members 49 while at the point of nofleXure there is provided a transverse pintle element 50 showninelevation in Fig. 8. The angle members 15--15 and 16-16 are connected tothe filler members 49 and 50 which together are substantially H-shapedto provide 'a rigid connection between the spansland the cross girder.lIn this type of girder it is also prov posed to'utilize suitablehorizontal stifening angles 51 vwhich coperate with the oblique bracingplates 52 to constitute the inside ties of the lateral system and bracethe webs 1 of the girders against oblique strains, while at the sametime vertical stiffening angles 53 may be utilized to perform theladditional strengthening function for the central portion of the webplates 45. The lateral system E may also be secured by fastenings 54 tovthe anchor plates 55 ar\ ranged on opposite sides of the cross girderand located in the plane of no flexurethereof, and the outside ties 44Xforb'ridging the joint may be the same as those shown in Figs. 6

A Sau further modiedform of built up A y1324.820 i -15 and 16-.16 of thegirder elements as 'isprovided in the other forms of the invention. Themourned form of crossgirder shown in- Fig. 9 illustrates another way ofcontinuing the lateral system through the point of no fleXure on theoutside of the girders B by means of the bolts 61 having the usual heads62 and the usual nuts 64,

and which pass through the angle members 15-15 and 16-16 rigidly carriedby the opposite girder elements B-B. Obviously,

. when the nut 64`is tightened up on the bolt i 61 the opposite spangirders will be'rigidly connected at the point of no iexure inthe samemanner as the built up outside tie mem-v ber 44 connects the oppositespan girders in the other forms of the invention. To assist the outsidetie bolt 61 of the lateral system in maintaining the desired rigidity atthe v.point of no flexure, it is proposed to also employ the obliouelydisposed inside tie members 65 which connect with the transverse angleplates 66 bolted to opposite faces of the separate webs 66*66. In thisform of the invention it will also be observed that in order to producethe desired vertical stiffness and necessary reinforcement of the crossgirder vertical angles 67 are also employed, as are likewise the anchorplates 68 located in the plane of no flexure of the cross girder andadapted to have secured thereto by fastenings 69 or other equivalent theobliquely disposed brace elements of the lateral system E.

A still further modified form of cross girder is suggested in Fig. 11 ofthe drawings. This cross girder is made of a single casting, wherebyabsolute solidity and rigidity thereof is insured, and as will beobserved from the drawings all of the important features andcharacteristics of the cross girders heretofore T-hat is to say, thiscast type of cross girder includes the opposite coupling end portions 7Q which are provided with the vertical bolting faces 71 and horizontalpintle elements 72 are the spaced lugs while projecting from their outeredges 73 which provide the for the outside members of the lateralsystem. The web portion 74 of the cross girder is provided with'ahorizontally extending anchor portion 75 1ocated' within the plane of`no exure for the purpose of receiving the ends of the lateral necessary'clearance pair of relatively .heavy The said spaced ends described arepreserved.

1s provided with a saddle base 76 for the up er shoe of theloaddistributing unit.

sfurther illustrating the range of modifications comprised within thescope of the presentinvention, reference may be made to Figs. 12 and 13of the drawings which show a special typeof hinge located adjacent tothe cross girder and adapted to-'permit of a relatively greater degreeof flexing between the span sections. As will be observed from theseiigures the vertical web la of one of the span girders is carried beyondthe plane system, and the extremelower edge thereof of theweb of thecross girder C and has f fitted to opposite sides thereof the hingeplates 77 whose spaced outer ends 78 provide ample clearance for thetenon end 79 of'the vertical web 1b of the opposite cross girder. 78 ofthe hinge plates 77 and the tenon end 79 areprovided vwith suitableregistering openings 80 in the plane of the point of no flexure forreceiving a relatively stout pivot-pin 81 which may be l held againstaxial disnlacement by means of a key 82 or its equivalent. It' will lofcourse be understood that the lateral system E is also employed inconnectionwith this type of hinged joint, the iimer'end of the sameconnecting as at E with the anchor plate E2 located in the plane ofno-iiexure on the cross girder. A

From thefforegoing it will be apparent that according to the inventionthe idea of a turntable including opposite span sections flexibly'connected, in combination with a lateral system having a rigidconnection with the cross girder at a point; in the plane of the pointof no iexure is preserved .in all forms of theinvention, andit will'ofcourse be understood that various changes in the' form, proportion-andminor details of oon- .struction in the turntable proper may be"resorted to and still come within the scope of the foregoing cardinalfeatures of the invention.

I claim' 1. A turntable construction including` opposite span sectionsexibly connected, and a lateral system having a rigid connec- Itionthrough the line of no tlexure. 2. A turntable construction including-separate span sections, a central cross girder, and arlateral systemhaving a rigid connection with the cross girdervthrough the line ofnoflexure. ,Y

3, A turntable construction yincluding separatespan sections flexiblyconnected, a

single cross girdercentrally located, and-1a v lateral 'system having arigid connection.

with the cross girder through the-liiie` no flexure.

4. A turntable -cnstructi01`. i

separate spanV sactions', and each having a pair of lspgm-.ed g1rdersa`s1 11`1`gle cross glrder connectingthel opposite' sp'aii" girders`adjacent the flexing point, and a lateral system having a rigidconnection with the cross girder through the line of no lleXure.

5. A turntable construction including separate span sections, a singlecross girder connecting opposite span girders adjacent the flexing pointand provided with intermediate anchoring plates, and a lateral systemrigidly connecting with said plates.

6. A turntable construction including separate span sections, a singlecross girder connecting opposite spanv girders adjacent the flexingpoint and provided with intermediate projecting anchoring plates lyingwithin the plane of no iieXure, and a lateral system rigidly connectedwith saidplates.

7. A turntable construction including opposite span sections, and across girder having connections with the adjoining span sec# tionsforming flexing joints therefor.

8. A turntable construction including opposite span sections, and asingle 'cross girder having connections with the adjoining span sectionsforming liexin'g joints therefor.

9. A turntable construction including op-y posite span sections, and across girder having` connections with the adacent span sections formingflexing joints therefor, and a lateral system connecting with the crossgirder through the plane of no llexure.

10. A turntable construction including separate span sections, a crossgirder having a jointed connection with the end of the span sectionsformingflexing points therefor, and a lateral system connecting with thecross girder through the plane of no iexure and including horizontalrigid tie members rigidly connecting with both span sections andbridging the joints.

1l. A turntable construction includng separate span sections, a crossgirder having a jointed connection with the ends of the span sectionsforming flexing points therefor, and a lateral system connecting withthe cross girder through the point of no flexure, and includinghorizontal outside rigid tie members rigidly connecting with both spansections and bridging the points.

12. A turntable construction including separate span sections, a crossgirder having a jointed connection with the ends of the span sectionsforming flexing points thereof, and a lateral system connecting with thecross girder through the point of no lexuie, and including horizontaloutside and inside 'rigid tie members rigidly connecting with both spansections and bridging 'the points.

13. A turntable construction including separate span sections havinggirders and a flexing joint comprising opposite and iexin flanges onadjoining girders, and a rigi coupling member clamped between saidopposite flanges and having a rigid pintle element., v

14. A turntable construction including opnaaaea l posite span sectionsconsisting of relatively deep girder elements, a single cross girderconnecting the inner end of said span sections, and a center bearing forrotatably supporting Vthe entire turntable, said center bearing beingdisposed entirely between the plane of the girders of the span sectionsand connected to the cross girder.

l)15. A turntable construction including opposite span sectionsconsisting of relativelyv deep parallel girder elements, a lateralsystem connecting the same, a single cross girder having its oppositeside portions -fornied to provide a flexing clearance, and

jointed span sections, a center and a single cross girder arranged overthe center and connected with the separate span sections.-

19. A turntable construction including two span sections iexiblyconnected, theY center, and a single cross girder arranged over thecenter and connected to both span sections at their joints.

20. In a multiple span turntable, a cen,- trally located cross` girder`-construction, within which is located a plane of no leXure, twosimilar span sections connectedto the cross girder construction forvertical Hex-v mg, and a rigid lateral system continuing through thespan sections and cross girder construction in the plane of no fiexure.

21. VA multiple span turntable including a centrallylocated cross girderconstruction and two similar span sections having a connection with saidcrossgirder construction to admit of verticalexing.

22. Ina multiple span turntable, the c0m bination of two span sectionsplaced in tandem, a cross girder placed between and ieXibly connectingthe adjacent ends of said span sections, and means for maintaining aplane of no llexure.

23. A multiple span turntable including separate span sections, and acentrally located cross girder having a divided web for clearing acentral stationary power st.

24. A multiple span turntable incluoing separate span sections, andacentrally located cross girder having a cut and spliced web forclearing. a central stationary power post.

25. A turntable construction including opiis posite span sectionsflexibly connected with the line of no flexure located between the spanHanges, and a lateral system having a rigid connection with the crossgirder through said line of no iexure.

26. A turntable construction including opposite flexibly connected spansections, and a cross girder located in the plane of no ilexure betweensaid span sections.

27. A turntable construction including opposite span sections, and asingle cross glrder flexibly connecting the inner ends of said spansections and including hinging means for said sections disposed in atransverse line lying within the vertical plane of the '15 cross girder.

In testimony whereof I hereunto affix my signature in the presence of a-Witness.

`Witness EMoRY L. Gnorr.

